A novel approach has been presented in this paper to precisely calculate equivalent 10 Hz voltage flicker level through time domain calculation. The typical frequency-domain calculation often applies the FFT which would possibly cause errors due to the spectral leakage caused by the transform. In addition, the FFT works well for only stationary signals. Nevertheless, most of the practical voltage fluctuations are nonstationary. Thereby, a time domain based method is proposed to eliminate these issues. In this paper, the method is implemented in a DSP and various aspect tests are made to verify its function and accuracy. The test results declare the feasibility of the proposed method.
|Number of pages||6|
|Journal||International Journal of Electrical Engineering|
|Publication status||Published - 2008 Dec 1|
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering